-
Yasuyuki Kusaka, Hirobumi Ushijima
2014 Volume 43 Issue 9 Pages
1405-1407
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 16, 2014
JOURNAL
RESTRICTED ACCESS
We report a simple method that allows facile evaluation of the driving force required to move a droplet settled on a boundary of two surfaces with different surface energies. In the method, a vertically placed sample substrate holding a droplet is gradually recovered to the horizontal state, so that the driving force of the self-directed movement can be obtained from the counterbalancing gravitational force exerted on the droplet at the critical tilt angle at which the droplet starts to move.
View full abstract
-
Yasunori Minami, Mayuko Kanda, Tamejiro Hiyama
2014 Volume 43 Issue 9 Pages
1408-1410
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 20, 2014
JOURNAL
OPEN ACCESS
Supplementary material
Palladium-catalyzed cycloaddition of alkynyl aryl ethers with isocyanates proceeds through
o-C–H activation to afford 2-methylidene-2
H-1,4-benzoxazin-3(4
H)-one derivatives. Deuterium-labeling experiment shows that
o-hydrogen is cleaved selectively and migrated to 2-methylidene moiety in the product. Various substrates are applied to this transformation to afford various substituted cycloadducts. 1,4-Bis(alkynoxy)benzenes can be used for the synthesis of multicondensed cycles to afford benzo[1,2-
b:4,5-
b′]bis[1,4]oxazine-3,8-dione derivatives.
View full abstract
-
Jun-chao Zheng, Shan-e Qin, Bao Zhang, Xing Ou, Lei Ming, Chao Shen, Y ...
2014 Volume 43 Issue 9 Pages
1411-1413
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 23, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
LiMnBO
3/carbon composite cathode material has been synthesized by using a ball-milling and postannealing method. The LiMnBO
3/C sample was characterized by using XRD, SEM, TEM, and electrochemical tests. The XRD results reveal the formation of a phase with the hexagonal structure. The SEM and TEM images indicate that the LiMnBO
3 particles are approximately 100 nm in diameter and are embedded in a porous carbon matrix. The electrochemical measurement results indicate that the LiMnBO
3/C cathode exhibits excellent electrochemical performance, deliver a high discharge capacity of 209.3 mA h g
−1 at 0.025 C, and possess favorable capacity at the rates of 0.05, 0.1, 0.2, and 1 C in the voltage range 1.0–4.8 V.
View full abstract
-
Takeshi Ogata, Hirokazu Narita, Mikiya Tanaka
2014 Volume 43 Issue 9 Pages
1414-1416
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 23, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
A novel adsorbent with a diglycol amic acid frame has been synthesized for the recovery of rare earth elements. The adsorbent has the ability to selectively adsorb rare earth metal ions from solutions containing high concentrations of base metal ions in a low pH region.
View full abstract
-
Mohammad Ghaffarzadeh, Pegah Akhavan
2014 Volume 43 Issue 9 Pages
1417-1419
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
A facile and efficient reductive acylation of aromatic nitro compounds to corresponding anilides using a sodium sulfite–carboxylic acid system for the first time has been reported. The sodium sulfite reagent provides the colorless reductant in combination with stoichiometric amounts of carboxylic acid and enables the formation of anilides from nitroarenes without any additives in good to excellent yields with high purities and simple work-up. Furthermore, this protocol provides a novel and complementary access to some industrially important chemicals in kilogram scale under mild conditions.
View full abstract
-
Hiroaki Horiuchi, Takayuki Kano, Hiroki Uehara, Tetsuo Okutsu
2014 Volume 43 Issue 9 Pages
1423-1425
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 20, 2014
JOURNAL
OPEN ACCESS
A carboxy tetraphenylporphyrin derivative formed aggregate by decreasing its pH, and suppressed its fluorescence and sensitization of singlet oxygen. This indicates that ON/OFF switching of the photosensitization can be achieved by aggregation and disaggregation of photosensitizers. To induce disaggregation, ultrasound was applied to the solution of the aggregate of photosensitizers, and disaggregation was confirmed by studying the fluorescence of the photosensitizer and phosphorescence of singlet oxygen sensitized. Thus this system works as a sono-activatable photosensitizer for photodynamic therapy.
View full abstract
-
Mohammad Mydul Alam, Wenwen Zhao, Shuo Zhai, Shin-ichi Yusa, Hideyuki ...
2014 Volume 43 Issue 9 Pages
1426-1428
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 23, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
Copper oxide (CuO) hollow nanospheres have been fabricated by using a micelle of poly(styrene-
block-acrylic acid-
block-ethylene oxide) (PS-
b-PAA-
b-PEG) as a template. The TEM image reveals that the diameter of the synthesized nanosphere is 40 ± 1 nm with a shell thickness 10 ± 1 nm. The CuO nanosphere electrode delivers high capacity at 350 mA h g
−1 after 30 cycles, which is associated to the hollow void space coupled with the nanosized shell domain that facilitates fast lithium diffusion.
View full abstract
-
Kosuke Suzuki, Fei Tang, Yuji Kikukawa, Kazuya Yamaguchi, Noritaka Miz ...
2014 Volume 43 Issue 9 Pages
1429-1431
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 23, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
A tetranuclear cerium-containing polyoxometalate, TBA
6[{Ce(H
2O)}
2{Ce(CH
3CN)}
2(µ
4-O)(γ-SiW
10O
36)
2] (
I, TBA: tetra-
n-butylammonium), showed a unique intramolecular multiple electron transfer (Ce
3+-to-POM(W
6+)) on irradiation of visible light (λ > 400 nm). This could induce hydrogen (H
2) evolution using alcohols as the electron donors, and a high turnover number (TON) of 1960 was achieved. Moreover,
I could be reused without an appreciable loss in its catalytic performance.
View full abstract
-
Hyekyung Lee, Inhwan Cha, Eun Ji Lee, Yunmi Lee, Yong Ho Kim, Changsik ...
2014 Volume 43 Issue 9 Pages
1432-1434
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 28, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
Annulated borepinol
1 was designed and synthesized. Borepinol
1 exhibited aromaticity that could be controlled by coordination at the boron center. Disrupted coordination by nucleophiles resulted in blue shifts in the UV–vis spectra, and this coordination was affected by the molecular structure of the nucleophiles. Borepinol
1 appeared to selectively bind to dopamine over norepinephrine, which are normally difficult to differentiate.
View full abstract
-
Zhongqiu Hua, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe, Kengo Shi ...
2014 Volume 43 Issue 9 Pages
1435-1437
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 23, 2014
JOURNAL
RESTRICTED ACCESS
Neat and Pd-loaded WO
3 sensors were fabricated from lamellar-structured nanoparticles. The sensing mechanism of hydrogen was investigated. Oxygen adsorption properties were studied through the resistive responses and TPD measurements. It was observed that oxygen adsorption was significantly enhanced by Pd loading from the viewpoint of p–n junction for PdO–WO
3. In the presence of H
2, the resistive response to oxygen for Pd-loaded WO
3 was obviously different from that of neat WO
3, which demonstrated a relatively weak response to oxygen. It was concluded that Pd loading not only promoted the sensor response but also made the sensing mechanism different from that of neat WO
3. It was proposed that with Pd loading, the surface lattice oxygen near Pd sites was involved for the sensing process of H
2.
View full abstract
-
Nguyen Duc Van, Dao Ngoc Nhiem
2014 Volume 43 Issue 9 Pages
1438-1440
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 28, 2014
JOURNAL
RESTRICTED ACCESS
Lead-free piezoelectric (K
0.5Na
0.5)NbO
3 nanopowders were synthesized by urea sol–gel combustion method using freshly prepared Nb
2O
5·
nH
2O and alkali hydroxides as starting materials and urea as a fuel. The effects of metal cation/urea molar ratio and calcination temperature on the crystalline phase formation of (K
0.5Na
0.5)NbO
3 were systematically investigated. The results showed that at a metal cation/urea molar ratio of 1:1, the single crystalline (K
0.5Na
0.5)NbO
3 nanopowders, with an average grain size of 15 nm, were synthesized at calcination temperatures as low as 400 °C.
View full abstract
-
Chihiro Izawa, Tomoaki Watanabe
2014 Volume 43 Issue 9 Pages
1441-1443
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 28, 2014
JOURNAL
RESTRICTED ACCESS
This study demonstrates direct fabrication of a visible-light-responsive LaTiO
2N film via nitridation of the La
2Ti
2O
7 film hydrothermally prepared on a titanium substrate as an oxide precursor. The thickness and surface morphology of the film were not significantly affected by nitridation. An anodic photocurrent was observed for the LaTiO
2N film fabricated using colloidal IrO
2 as a cocatalyst for the oxidation of water, indicating the oxidation of water. This implies that the fabricated LaTiO
2N film functions as an n-type semiconductor electrode under visible-light irradiation.
View full abstract
-
Kazuma Oda, Satoru Hiroto, Hiroshi Shinokubo
2014 Volume 43 Issue 9 Pages
1444-1446
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 28, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
Treatment of bis(trimethylsilylethynyl)porphyrin with strong acids afforded doubly oxoethano-fused porphyrin with perfect regioselectivity. The oxoethano-fused porphyrin was more electron deficient than
meso-acetylporphyrin because of the coplanar orientation of the carbonyl groups to the porphyrin π system.
View full abstract
-
Aifeng Liu, Hongwei Che, Jingbo Mu, Yongmei Bai, Shufeng Zhao, Junxian ...
2014 Volume 43 Issue 9 Pages
1447-1449
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 28, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
Novel hierarchical dandelion-like Co
3O
4 microspheres have been successively synthesized via a facile solvothermal reaction and subsequent calcination. The calcined products exhibit well-fined dandelion-like morphology with sizes of about 2 µm. These microspheres are composed of numerous 1D nanorods arranged radially on the surface. The evolution process of dandelion-like microspheres has been investigated, and a possible evolution mechanism has been proposed. When evaluated as a gas sensor, the obtained dandelion-like Co
3O
4 microspheres exhibit superior ethanol gas sensing performance.
View full abstract
-
Hiroto Kudo, Hiroki Ogawa, Kazunori Naritomi, Yuka Murata, Hiroki Kano ...
2014 Volume 43 Issue 9 Pages
1450-1452
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 30, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
We developed an epoxy thermosetting system based on a reaction of an epoxy resin and ε-caprolactam (ε-CL) in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) as a catalyst. Ring-opening copolymerization of epoxide groups and ε-CL proceeded at 170 °C, affording gel products in high yields. The physical properties of the products were dependent on the feed ratios of the epoxy resin and ε-CL.
View full abstract
-
Sung Min Kim, Jihoon Lee, Insik In, Sung Young Park
2014 Volume 43 Issue 9 Pages
1453-1455
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
A highly conducting and optically transparent silver nanowire–polyaniline (AgNW–PANI) hybrid network was formulated by mussel-inspired conjugation of catechol-enriched PANI with AgNW. Chemical bridging rather than physical mixing of electrically conducting PANI with AgNW successfully produced transparent conducting film on plastic substrates with enhanced adhesion.
View full abstract
-
Hiromichi Akinaga, Naoki Masaoka, Kazuhiro Takagi, Ilhyong Ryu, Takahi ...
2014 Volume 43 Issue 9 Pages
1456-1458
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 23, 2014
JOURNAL
RESTRICTED ACCESS
Flow carbonylation using near-stoichiometric amounts of carbon monoxide was studied. The Heck carbonylation of 1-bromo-3,5-bis(trifluoromethyl)benzene was chosen as a model for the flow carbonylation, which proceeded efficiently with the use of 1.2 equiv of CO to give the desired ester in quantitative yield.
View full abstract
-
Yuichiro Kadonaga, Ning Wang, Yukari Fujimoto, Koichi Fukase
2014 Volume 43 Issue 9 Pages
1461-1463
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 24, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
Bacterial cell wall peptidoglycan (PGN) is a major innate immunostimulant of bacteria and an important antibiotic target. Chemically prepared PGN fragments are indispensable for the investigation of their function. In this research, the PGN fragments containing acid- and base-labile functional groups were practically synthesized by utilizing a newly developed solid-phase method employing the JandaJel™ Wang resin.
View full abstract
-
Takahiro Sasamori, Yuko Suzuki, Michiyasu Sakagami, Hideaki Miyake, No ...
2014 Volume 43 Issue 9 Pages
1464-1466
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 24, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
Chalcogenation reactions of 1,2-bis(ferrocenyl)diphosphene, Fc*P=PFc* (Fc*: 2,5-bis(3,5-di-
t-butylphenyl)ferrocenyl), with elemental sulfur (S
8) and tellurium afforded the corresponding thia- and telluradiphosphirane derivatives as stable crystalline compounds, respectively. The sterically demanding ferrocenyl group would afford sufficient crystallinity and stability to the heterocyclic compounds; the structures of these three-membered ring heterocycles were revealed by X-ray crystallographic analysis.
View full abstract
-
Hiroaki Ozoe, Chitoshi Kitamura, Hiroyuki Kurata, Jun-ich Nishida, Tak ...
2014 Volume 43 Issue 9 Pages
1467-1469
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 30, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
The title imides possessing a planar acenaphthofluoranthene moiety were prepared by the Diels–Alder reaction of diacenaphtho[1,2-
b:1′,2′-
d]thiophene and maleic anhydride and subsequent treatment with amines. The reaction with maleimide afforded the corresponding 1:2 adduct displaying intense blue fluorescence in solution. Although the imides crystallize yellow needles, their amorphous solids are red. Concentration-dependent
1H NMR spectra of a
N-octyl derivative reveal self-aggregation behavior in CDCl
3.
View full abstract
-
Dongliu Dong, Yongfa Zhang, Yuqiong Zhao, Qi Wang
2014 Volume 43 Issue 9 Pages
1470-1472
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 30, 2014
JOURNAL
RESTRICTED ACCESS
The modification of noncaking lignite to coking coal was carried out using a CO–subcritical water reaction system, and the surface structure of the modified coal was characterized by X-ray photoelectron spectroscopy. The results show that the caking index (
G) of the modified coals increases from 24 to 92 during the progress of catalytic hydromodification. Some oxygen-containing functional groups were removed, decreasing the concentration of C–O, C=O, and COO
−.
View full abstract
-
Liwen Yue, Baoshan Li, Zhiming Ren, Naijin Wu, Xuan Li
2014 Volume 43 Issue 9 Pages
1473-1475
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 30, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
A series of copper-doped mesoporous silica pillared clay (Cu-MSPC) with high catalytic performance on the hydroxylation of benzene to phenol have been synthesized with a facile process. The high conversion (31.1%) and selectivity (96%) toward phenol are achieved with only 4.16% copper loading. The characterization results show that the copper of these materials is doped in the intergallery silica pillar, leading to the high catalytic performance at low copper loadings. Meanwhile, the formation of Cu-MSPC structure is proposed.
View full abstract
-
Mari Miyata, Masahiro Teraguchi, Hiromichi Endo, Takashi Kaneko, Toshi ...
2014 Volume 43 Issue 9 Pages
1476-1477
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 31, 2014
JOURNAL
RESTRICTED ACCESS
Helix-sense-selective photodegaradation of poly[4-dodecyloxy-3,5-bis(hydroxymethyl)phenylacetylene] (poly(DoDHPA)) in membrane state was achieved by selective photocyclic aromatization (SCAT) using single-handed circularly polarized light (CPL). This is the first example of kinetic optical resolution of helical polymers by using CPL.
View full abstract
-
Takao Sada, Tsuyohiko Fujigaya, Naotoshi Nakashima
2014 Volume 43 Issue 9 Pages
1478-1480
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: June 06, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
The successful layer-by-layer assembly formation using a polyanion and trivalent ion, such as Fe
3+, on the surfaces of the nanopores in an anodic aluminum oxide membrane with a pore diameter of 35 nm is demonstrated.
View full abstract
-
Hikari Sato, Yuta Nakamura, Elnaz Nakhaei, Daiki Funamoto, Chan Woo Ki ...
2014 Volume 43 Issue 9 Pages
1481-1483
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
Herein, we reported a design of liposome affording a reversible coating of serum albumin on its surface. We synthesized a lipid modified with a serum albumin-specific endogenous ligand and prepared liposome, including this lipid. We successfully confirmed the coating of the liposome surface with serum albumin. The liposome presented here would be applicable to a drug carrier with enhanced blood circulation.
View full abstract
-
Jingjing Shi, Mengyang Fan, Jinli Qiao, Yuyu Liu
2014 Volume 43 Issue 9 Pages
1484-1486
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: July 18, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
Using poly(ethyleneimine) as a source of C and N, FeCl
2 as iron and Cl precursor, and SiO
2 as template, the first N,Cl-dual-doped mesoporous carbon (denoted as (FeCl
2-PEI)
LH) was prepared. The (FeCl
2-PEI)
LH exhibits a high oxygen reduction electrocatalytic activity and superb durability both in alkaline (0.1 M KOH) and strong acidic (0.5 M H
2SO
4) solutions, significantly outperforming their counterparts doped with single N due to the synergistic coupling effect arising from the codoping of mesoporous carbon with both N and Cl.
View full abstract
-
Afef Mehri, Hafedh Kochkar
2014 Volume 43 Issue 9 Pages
1487-1489
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 28, 2014
JOURNAL
RESTRICTED ACCESS
Mesostructured TiO
2 nanomaterials with tuned crystallite sizes were elaborated by a novel green route using soluble starch as the structuring agent and titanium(IV) isopropoxide as the inorganic precursor. Using hydrothermal treatment (HT), soluble-starch removal from the inorganic matrix is about 80 wt % against 60 wt % for the enzymatic one (ET). Coupling the ET and HT leads upto 90 wt % of starch removal. The TiO
2 crystallite sizes are stabilized at 6 nm.
View full abstract
-
Makoto Tominaga, Shuhei Mochida, Hiroyuki Sugihara, Koichiro Satomi, H ...
2014 Volume 43 Issue 9 Pages
1490-1492
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 28, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
We synthesized two-photon absorption probes based on naphthalene and anthracene: 1,1′-dimethyl-4,4′-(2,6-naphthylenedi-2,1-ethenediyl)dipyridinium diiodide (NP) and 1,1′-dimethyl-4,4′-(2,6-anthrylenedi-2,1-ethenediyl)dipyridinium diiodide (AC). These two probes were successfully accumulated in mitochondria with different fluorescence colors: yellow (NP) and red (AC). Two-photon absorption cross sections (σ
(2)) were 712 and 685 GM (1 GM = 10
−50 cm
4 s photon
−1 molecule
−1), respectively. These values are nine times larger than the σ
(2) of the commercially available mitochondria-selective probe with efficient two-photon absorption property (rhodamine 123).
View full abstract
-
Cunpu Li, Shiman Zhang, Shubo Wang, Xiaofeng Xie, Changsheng Deng, Vij ...
2014 Volume 43 Issue 9 Pages
1493-1495
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 30, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
A crosslinked anion-exchange membrane (AEM) with an in situ photoswitch was synthesized. The side-chain effects on the properties of the AEM were studied using the same membrane sample in different status. The variances between the different samples were eliminated. The hydroxide conductivity of AEM could be increased by reducing the distance between the cations.
View full abstract
-
Takashi Harada, Ryo Hasegawa, Katsura Nishiyama
2014 Volume 43 Issue 9 Pages
1496-1498
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 30, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
A Ce
3+ complex with tetradentate ligands based on benzimidazole moieties was synthesized. The photochemical properties of the Ce
3+ complex were studied via absorption and emission spectra and emission quantum yield measurements. The effective values of the molar absorption coefficient and the emission quantum yield were estimated to be 890 dm
3 mol
−1 cm
−1 and 0.58, respectively; these values are relatively large compared to those of common rare-earth metal complexes that exhibit 4f–4f emissions.
View full abstract
-
Guoxiang Han, Ning Feng, Guojie Wang
2014 Volume 43 Issue 9 Pages
1499-1501
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: June 06, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
The interactions of hen egg lysozyme (HEL) and bovine serum albumin (BSA) with an azobenzene polymer (P(AZO-
co-AA)) were investigated by fluorescence spectroscopy. The azobenzene chromophore could strongly quench the intrinsic fluorescence of the proteins through the Förster resonance energy transfer (FRET) and the quenching effect was dependent on the pH values since the polymer also contained pH-sensitive carboxylic groups. The fluorescence quenching by azobenzene shows great potential applications in protein sensing.
View full abstract
-
Christoph Rehbock, Janina Zwartscholten, Stephan Barcikowski
2014 Volume 43 Issue 9 Pages
1502-1504
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: June 06, 2014
JOURNAL
OPEN ACCESS
Supplementary material
This paper highlights a strategy on how totally ligand-free biocompatible gold submicrometer spheres (Au-SMSs) can be synthesized by aggregating laser-fabricated nanoparticles (NPs) with NaCl followed by subsequent post-irradiation using pulsed lasers at a moderate fluence. Interestingly, we observed significant changes in the surface structure of the SMSs, caused by the adsorption of smaller particles following a disaggregation–melting–redeposition–sintering-mechanism. Here, utilization of low fluences yielded perfectly smooth textures while higher fluences lead to wrinkled textures. Furthermore, we elucidate that prior to aggregation, the particle size distribution of the source AuNPs may significantly interfere with the surface texture of the resulting Au-SMSs, indicated by predominant formation of rough surface structures in the presence of smaller source NPs. These findings may highlight novel synthesis strategies for Au-SMSs with rough surface textures, particularly beneficial for SERS applications.
View full abstract
-
Hiroshi Inaba, Nusrat J. M. Sanghamitra, Toshihiro Fukai, Takahiro Mat ...
2014 Volume 43 Issue 9 Pages
1505-1507
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: June 06, 2014
JOURNAL
OPEN ACCESS
Supplementary material
A protein delivery system with a protein needle has been constructed. Green fluorescent protein (GFP) was genetically fused to a cell-penetrating protein needle. The construct is stable in buffer and cell culture medium. Internalization of the construct in HeLa cells and subsequent release of GFP from the needle was observed. The study provides a useful tool for intracellular protein delivery in an efficient manner and has potential for use in vitro and in vivo applications.
View full abstract
-
Jian-ming Gao, Mei Zhang, Min Guo
2014 Volume 43 Issue 9 Pages
1508-1510
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
JOURNAL
RESTRICTED ACCESS
Magnesium hydroxide submicroplatelets were synthesized from laterite leaching solutions by using two methods, namely, precipitation and hydrothermal methods. X-ray diffraction results coupled with Fourier transform infrared spectrometry indicated that all the samples were well-crystallized Mg(OH)
2 with a hexagonal structure. Scanning electron microscope images showed that nanosized Mg(OH)
2 synthesized by the hydrothermal method have transformed into regular, scattered, and well-defined hexagonal platelets. Thermogravimetry–differential scanning calorimetry analysis demonstrated that Mg(OH)
2 submicroplatelets synthesized by the hydrothermal method became more stable.
View full abstract
-
Kazuya Nakata, Chiaki Terashima, Akira Fujishima
2014 Volume 43 Issue 9 Pages
1511-1513
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
JOURNAL
RESTRICTED ACCESS
A poly(methyl methacrylate) (PMMA) film with moth-eye-structured surface was coated with PtCl-modified TiO
2 (PtCl–TiO
2) particles to form an antireflective and self-cleaning film that works under visible-light illumination. Coating PtCl–TiO
2 on the PMMA surface produced a porous PtCl–TiO
2 layer. Transmittance spectra showed near independency of the tilted angle of light illumination for the coated film. The coated film showed the ability to decompose oleic acid under visible-light irradiation.
View full abstract
-
Chaorui Xue, Takashi Narushima, Yohei Ishida, Tomoharu Tokunaga, Tetsu ...
2014 Volume 43 Issue 9 Pages
1514-1516
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
JOURNAL
RESTRICTED ACCESS
Double-wall TiO
2 nanotube arrays were prepared using an anodization method in a glycerol-containing electrolyte. In situ TEM observation of these samples at high temperature was carried out with and without oxygen injections. With oxygen injection, an improved thermal stability of the nanotubes at high temperature was observed. It may provide more detailed information about the calcination process of TiO
2 nanotubes and assist its morphology and structure modulation.
View full abstract
-
Noor Farisha Abd. Rahim, Kohtaro Watanabe, Hidayah Ariffin, Yoshito An ...
2014 Volume 43 Issue 9 Pages
1517-1519
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: May 31, 2014
JOURNAL
RESTRICTED ACCESS
Supplementary material
In order to design sustainable materials from vegetable oil-based fatty acids, we propose herewith a method to obtain unsaturated dicarboxylic acids as a polymerizable monomer through metathesis reaction of oleic and linoleic acids with the 2nd generation Grubbs catalyst. Subsequently, functional green polyester was produced from dicarboxylic acids and aromatic diol. Dicarboxylic acid having similar structure i.e., octadec-9-enedioic acid was successfully obtained from metathesis of both oleic and linoleic acids. Condensation polymerization of octadec-9-enedioic acid with 1,6-hexanediol and 4,4′-biphenol was carried out and it was shown that polymer with aromatic backbone had higher glass-transition temperature than aliphatic polyester.
View full abstract
-
Kazuhiko Yamada, Masayoshi Saito, Ryutaro Ohashi, Toshihito Nakai, Ken ...
2014 Volume 43 Issue 9 Pages
1520-1521
Published: September 05, 2014
Released on J-STAGE: September 05, 2014
Advance online publication: June 10, 2014
JOURNAL
RESTRICTED ACCESS
We present
47/49Ti stationary NMR spectra of TiO
2 produced in Canada, Australia, and India, acquired at 21.8 T, demonstrating that solid-state
47/49Ti NMR potentially enables one to distinguish the production areas of TiO
2.
View full abstract
